/*
 * Copyright (c) 2008 VMware, Inc.
 * Copyright (c) 2009 John Pritchard, WTKX Project Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package wtkx.wtk.effects;

import wtkx.Component;

/**
 * Fade transition class.
 *
 * @author gbrown
 */
public class FadeTransition
    extends Transition
{

    private Component component;
    private FadeEffect fadeEffect = new FadeEffect();


    public FadeTransition(Component component, int duration, int rate) {
        super(duration, rate, false);
        this.component = component;
    }


    @Override
    public void start(TransitionListener transitionListener) {
        component.getEffects().add(fadeEffect);

        super.start(transitionListener);
    }

    @Override
    public void stop() {
        component.getEffects().remove(fadeEffect);

        super.stop();
    }

    @Override
    protected void update() {
        fadeEffect.setOpacity(1.0f - getPercentComplete());
        component.repaint();
    }
}
